The cumulative frequency graph shows the reaction times, in milliseconds (ms), of 100 students.

| Time (ms) | Cumulative frequency |
|---|---|
| 200 | 10 |
| 240 | 25 |
| 280 | 50 |
| 320 | 75 |
| 400 | 100 |
The students had a minimum reaction time of 185 ms and a maximum reaction time of 390 ms.
Draw a box plot to show the distribution of the reaction times.

Practise Edexcel GCSE Maths Box Plots with exam-style questions for Foundation and Higher tier. 36 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.